I’ve been having difficulty with the Rift’s ASW software interfering with the graphics in a both DCS and Battle of Stalingrad. Well, finally I have a fix. If you download the Oculus Tray Tool then you can turn ASW off permanently or you can set up a profile for either sim and ensure that it does not run while the sim is. It also gives you control over a few other aspects of the Rift.
It would now appear that I can play Battle of Stalingrad without the stutters anymore.
The Tray Tool can be downloaded here: